Bicycle seat-post and pump.



No. 730,074. PATENTBD JUNEz, 1903;

' W. A. ALLEN.L

BICYCLE SEAT POST AND. PUMP.

l APPLICATION FILED DEO. 16, 1902.

no MODEL.

UNiTED STATES 'Patented June 2, 1903.

PATENT OFFICE..

lBICYCLE SEAT-POST AND PUMP.

SPECIFICATION forming part of Letters Pate-'nt No. 730,074, dated'J' une 2, 1903.

Application filed December 16, 12902.' Serial No. 135,447. (No model.)

T all whom it' may concern:

Be it known that I, WARREN A. ALLEN, a citizen of the United States, residing at College Place, in the county of Walla Walla and State of` Washington, have invented anew and useful Bicycle Seat-Post and Pump, of which the following is a specification..

The invention relates to a bicycle seatpost and pump.

The object of the present invention is to improve the construction of bicycle-pumps and toprovide a simple, inexpensive, and eficient one designed to be arranged Within the frame of a bicycle in order to be concealed from view and protected from injury and adapted to be readily arranged for operation and quickly returned to its normal position.

The invention consists in the construction and novel combination and arrangement of view, the seat-post being removed from the4 upright tube of the bicycle-frame to form a handle for the pump. Figs. 3 and 4 are sectional views on the lines 3 3 and 4 4 of Fig. 1. Fig. 5 is a detail view of the seat-post head as viewed from the rear. Fig. 6 is a detail view of the head of the seat-post.

Like numerals of reference designate corresponding parts in all the figures of the drawings. y

1 designates a pump cylinder arranged within an upright tube 2 of a bicycle-frame and provided at its lower end lwith -a lug 3, having a threaded perforation for the 'reception of a screw4, which passes through the tube 2 and engages the lug to hold the pumpcylinder in the upright tube. The lower portion of the pump-cylinder is yalso connected with a nipple 5, extending through one side of the tube and the adjacent` side of theV cylinder and having an exteriorly-arranged portion adapted to receive a rubber tube 6 of suflicient length to be connected with either of the wheels of the bicycle. The rubber tube is removable and is applied when it is desired to use the pump; but it may be permanently connected with the nipple, if desired.

The cylinder 1 receives a plunger or piston 7 of the usual construction, and the stem or rod of the piston orf-plunger extends upward and is connected withaseat-post, which extends into the upper portion of the upright tube in the usual manner. l

The stem of the seat-post is composed of oppositely-tapered front and rear sections 8 and 9, adapted to be moved longitudinally on each other to clamp the seat-post in the tube of the bicycle-frame and to release the same. The stem is tubular and the front section tapers downwardly and is adapted to be drawn outward by a slightgtap on the saddle 10 to loosen the parts to 'permit the seat-postte be' readily removed from the bicycle-frame. The sections 8 and 9 of the stem of the seat-post have enlarged lattened ends 1l and 12 to lit Iin an opening 13 of the head 14 of theseatpost, and the said head is provided with an arm or rod 15 of tubular form to receive the saddle-clamp 16. The head of the seat-post is constructed of a single piece of metal doubled to form a tubular portion to receive the rod or arm 15 and extended downward from the same to provide va pair of sides which are spaced apart to form the opening 13 for the reception of the upper-ends of the sections 8 and 9 of thev stem of the seat-post. One of the upper ends of the sections is providedwit'h a notch 17, forming a hook for engaging a transverse fastening device 18 of the head, and the other section lS is connected with the headbya pivot 19, which is arranged in an L-shaped opening 20 in the upper end of the section 8. The L-shaped opening 20,

which receives the pivot 19, permits the head to be swung upward slightly and moved rearlWard sufficiently to disengage it from the notch of the rear section 9, thereby permitting the front section to be removed from the upright tube of the bicycle-frame sufficiently to loosen the rear section and permit thesame to be detached. When the head isdisconnccted from the rear section, the frontv section of the stein may -be entirely removed from the upright 2, together with the saddle. The rear section after it is removed from the tube is turned at right angles to the stem of the plunger or piston of the air-pu mp, asillus'- trated in dotted lines in Fig. 2, to form a handle for operating the pump. After the tires have been inflated the rear section of the stem is first replaced in the tube, thon the front section is introduced into the latter, and the head of the seat-post is engaged with the hook-shaped portion of the upper end of the rear section. After the seat is adjusted to the proper height the stem is locked in the upright tube by forcing the front portion of the saddle downward to carry the pivot 19 into the upper portion of the L-shaped slot 20. This causes the sections of the stem to move on each othersu hciently to firmly clamp the seat-post at the desired adjustment. The saddle forms sucient leverage to enable the front section of the stem to be readily loosened by a light tap on the bottom of the front portion of the said saddle.

In order to prevent the air-pump from interfering with the vertical adjustment of the seat, the upper end of the stem of the piston or plunger is provided with an elongated slot 2l for the reception of a pin 22, which is carried by the rear section of the stem and permitsthe stem to move longitudinally.

It will be seen that the bicycle-pump is exceedingly sim ple and inexpensive in construction, that it is adapted to be readily applied to an ordinary bicycle, and that itis concealed from view and is protected from injury in case of accident. It will also be apparent that the pump is especially adapted for bicycles employed in long rides, and that it is always in position for use and may be quickly arranged for operation. It will also be apparent that the saddle and the major portion of the seat-post are detached from the bicycle and that the rear section of the stem of the seat-post is pivot-ally connected with the piston of the pump and is adapted to be arranged at right angles to the same to form a handle.

What I claim isl. In a device of the class described, the combination with a bicycle-frame, of a pump located within the same, and a seat-post provided with a stem composed of separable tapered or wedge-shaped sections forming a clamp, one of the sections being connected with the piston of the pump and forming a handle for the same, substantially as described.

2. In a device of the class described, the combination with a bicycle-frame, of a pump located within the same, and a seat-post provided with an expansible stem fitting within the frame of the bicycle and forming a clamp and connected with the piston of the pump, substantially as described.

3. In a device of the class described, the combination with a bicycle-frame, of a pum'p arranged within the same,and a seat-post comprisng a stem composed of two sections, one ofthesections beingconnected with the pump, and a head movably mounted on one of the sections and detachab-ly interlocked with the other, substantially as described.

4. In a device of the class described, the combination with a bicycle-frame, of a pump arranged within the same,and a seat-post comprising a stem composed of two sections, one of the sections being slidably and pivotally connected with the piston of the pump, and a head mounted on the other section and detachably inter-locked with the section which is connected with the pump, substantially as described.

5. In a device of the class described, the combination with a bicycle-frame, of a pump arranged within thesame,and aseat-post composed of a stem having two tapered or wedgeshaped sections forming a clamp, one of the sections being connected with the pump, and a head mounted on one of the sections of the stem and detachably interlocked with the other section, substantially as described.

6. In a device of the class described, the combination with a bicycle-frame, of a pump arranged within the same, a stem composed of two tapered sections, one of the sections having a hook-shaped portion and connected with the pump, and the other section being provided with an L-shaped opening, and a head detachably interlocked with the hookshaped portion and provided with a pivot for engaging in said opening, substantially as described.

7. In a device of the class described, the combination With a bicycle-frame, of a pump arranged within the same, a piston for the pump, a slotted piston-rod secured to said piston, a stem composed of two sections, and a pin carried by one of the sections and fitting within said slot, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

W'ARREN A. ALLEN.

Vitnesses:

D. R. NICHOLS, GEO. E. ALLEN.

IOO 

